Suppledump is directly caused by an incresed and often times excessively large intake of supplements mainly used while weightlifting, the dump comes out loose like diarrhea but has a higher nutritional value than other dumps. They often smell like whatever tabs/pills/powders you consume before your workout. You know you have it coming when about 3 hours after you lift your stomach starts bubbling and growling.

You almost ready to go?
Yeah lemme hit the toilet real fast I got a mean suppledump comin